freezmo/app/layout.tsx
Martin Dvorak 618ad5fb9c Add an English/Czech interface language switch
English stays the default; Czech is a full translation. Only the app chrome
is translated - notes and generated decks keep their own language, which is a
core feature, not a setting.

i18n
- lib/i18n-dict.ts: flat en/cs dictionaries (441 keys each), translate() and
  translatePlural() with real Czech plural rules (1 sada / 2-4 sady / 5+ sad).
  English is the default and the fallback for a missing key.
- lib/i18n.ts: browser store (freezmo.locale.v1), useI18n() hook, and the
  x-freezmo-locale header. The hook's t/plural are bound to the locale React
  is rendering with, so the first client render matches the server HTML and
  then re-renders in the stored language; module-level t is only for event
  handlers and non-React helpers.
- <html lang> follows the choice (inline script + setLocale).

UI
- Settings -> Language segmented control (English / Cestina), plus an EN/CS
  button on the key gate for first run.
- Every screen translated: sidebar, header, tab bar, library, deck cards,
  folder bar, create flow, all seven activities, study chrome, results,
  settings + health panel, API-key gate and help, install sheet, offline and
  the deck-not-found page.
- Plural-aware counts everywhere (decks, folders, activities, runs, photos,
  documents, pages, words, wrong attempts).

Server
- API routes and guards (generate, grade, health, http-guard, rate-limit,
  ollama error mapping) answer in the request's language, so error cards and
  the health panel never fall back to English mid-sentence.

Fixes
- A hydration mismatch when a non-default locale was stored silently dropped
  the .dark class after hydration; render-time t() is now bound to the
  hook's locale (UploadScreen.describeExtraction, ResultsScreen.answerFor,
  DeckCard's folder fallback).
- Bumped the service worker cache to freezmo-v4 for this deploy.

Tests: i18n 27/27 (gate toggle, persistence, html lang, Czech plurals,
settings switch) and a rebuilt regression suite 72/72 (English default,
library, create, all 7 activity types, results, settings, install sheet,
offline, PWA, security, Czech smoke).
2026-10-08 13:56:32 +00:00

85 lines
3.4 KiB
TypeScript

import type { Metadata, Viewport } from "next";
import { IceBackdrop } from "@/components/IceBackdrop";
import { InstallSheet } from "@/components/InstallSheet";
import { ServiceWorkerRegistrar } from "@/components/ServiceWorkerRegistrar";
import "./globals.css";
export const metadata: Metadata = {
title: {
default: "Freezmo — turn your notes into a study feed",
template: "%s · Freezmo",
},
description:
"Freezmo turns photos and documents of your notes into a swipeable feed of short interactive study activities, powered by your own Ollama models.",
applicationName: "Freezmo",
manifest: "/manifest.webmanifest",
appleWebApp: {
capable: true,
title: "Freezmo",
statusBarStyle: "default",
},
icons: {
icon: [
// ?v=2 busts browser favicon caches after the icon redesign.
{ url: "/icons/favicon-32.png?v=2", sizes: "32x32", type: "image/png" },
{ url: "/icons/icon-192.png?v=2", sizes: "192x192", type: "image/png" },
{ url: "/icons/icon-512.png?v=2", sizes: "512x512", type: "image/png" },
],
apple: [
{ url: "/icons/apple-touch-icon.png?v=2", sizes: "180x180" },
{ url: "/icons/apple-touch-icon-167.png?v=2", sizes: "167x167" },
{ url: "/icons/apple-touch-icon-152.png?v=2", sizes: "152x152" },
],
},
other: {
// iOS standalone niceties
"apple-mobile-web-app-capable": "yes",
"mobile-web-app-capable": "yes",
"format-detection": "telephone=no",
},
};
export const viewport: Viewport = {
width: "device-width",
initialScale: 1,
// Phones: no pinch/double-tap zoom (the app-like feel). The input font-size
// rule in globals.css is what actually stops iOS Safari's focus auto-zoom,
// which ignores user-scalable=no.
maximumScale: 1,
userScalable: false,
viewportFit: "cover",
themeColor: [
{ media: "(prefers-color-scheme: light)", color: "#f4f7fd" },
{ media: "(prefers-color-scheme: dark)", color: "#0e1424" },
],
};
/** Applies the saved theme before paint to avoid a flash. */
const themeScript = `(function(){try{var s=localStorage.getItem('freezmo.theme');var d=s?s==='dark':window.matchMedia('(prefers-color-scheme: dark)').matches;if(d)document.documentElement.classList.add('dark');var l=localStorage.getItem('freezmo.locale.v1');if(l==='cs'||l==='en')document.documentElement.lang=l;}catch(e){}})();`;
/**
* Captures Chrome's `beforeinstallprompt` (it can fire before React hydrates)
* and records an install so the prompt never comes back. Static, no user data.
*/
const installScript = `(function(){try{
window.addEventListener('beforeinstallprompt',function(e){e.preventDefault();window.__freezmoInstallPrompt=e;window.dispatchEvent(new Event('freezmo:installprompt'));});
window.addEventListener('appinstalled',function(){try{localStorage.setItem('freezmo.install.installed','1')}catch(e){}window.dispatchEvent(new Event('freezmo:installed'));});
}catch(e){}})();`;
export default function RootLayout({ children }: { children: React.ReactNode }) {
return (
<html lang="en" suppressHydrationWarning>
<head>
<script dangerouslySetInnerHTML={{ __html: themeScript }} />
<script dangerouslySetInnerHTML={{ __html: installScript }} />
</head>
<body className="min-h-full antialiased">
<IceBackdrop />
{children}
<InstallSheet />
<ServiceWorkerRegistrar />
</body>
</html>
);
}